Quantifying driver's field-of-view in tractors: methodology and case study

Gilad, Issachar; Byran, Eyal

doi:10.1080/10803548.2015.1017942

Cited by 13 publications

(11 citation statements)

References 5 publications

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“…Rakhra and Mann analyzed the operator's reaction time and response errors during monitoring of rear-mounted equipment [93]. Ehlers and Field investigated the visibility features of tractors to enhance rearward visibility [94,95], while Gilad and Byran [96] focused their attention on modeling the tractor operators' field of view.…”

Section: Ergonomicsmentioning

confidence: 99%

Safety Vision of Agricultural Tractors: An Engineering Perspective Based on Recent Studies (2009–2019)

Fargnoli

Lombardi

2019

Safety

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The high rate of injuries occurring in agricultural activities is of major concern in most countries, despite the ever-increasing efforts made at normative levels. In particular, the use of agricultural tractors is recognized as the most hazardous activity for farmers due to the large number of fatalities occurring every year. The aim of the present study was to investigate the recent developments in research activities dealing with tractor safety. For this purpose, a systematic literature review was carried out, taking into account engineering journal papers appearing in Scopus in the 2009–2019 period and focusing on tractor safety. As a result, 79 documents were selected and analyzed based on both their type (e.g., conceptual or empirical studies) and specific targets. They were then classified and discussed in accordance with a reference framework representing the main issues of agricultural tractor safety: mechanical hazards, protective devices, command and control, other hazards, ergonomics, information, conformity, and user behavior. The results of this analysis brought to light the need for a more human-centered approach when dealing with tractor safety. In addition, the lack of a reliable framework of technical standards was also stressed. Overall, despite the limitations due to the selection criteria, this study represents the first systematic literature review depicting the status of tractor safety in the engineering field, providing a basis for further research on the emerging themes outlined.

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Section: Ergonomicsmentioning

confidence: 99%

Safety Vision of Agricultural Tractors: An Engineering Perspective Based on Recent Studies (2009–2019)

Fargnoli

Lombardi

2019

Safety

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“…In addition to these, Bhattacherya et al (2006) proposed the use of laser scanning for collecting visibility information. Gilad and Byran (2015) used their developed field-of-view analysis methods based on DHM to measure the visibility from three different tractors. They evaluated visibility around the cab at a height of 30 cm.…”

Section: Related Workmentioning

confidence: 99%

“…The aforementioned evaluation methods have usually been employed when designing next-generation machines (e.g. in next-generation tractors the location of the exhaust pipe should be changed in order to achieve better visibility (Gilad and Byran 2015)). Traditionally, measures intended to improve visibility have included enlarging the window surface, changing the cab structure, use of mirrors and provision of additional camera views.…”

Section: Related Workmentioning

confidence: 99%

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Virtual prototyping in the design of see-through features in mobile machinery

2019

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Limited visibility from a mobile machine cab can decrease task performance and lead to accidents. Therefore, it is important to consider visibility issues already in the design phase. This paper describes the use of virtual prototyping in the evaluation of see-through features of mobile work machines. The goal is to evaluate whether two different machine boom transparency levels have an effect on task performance. In addition, two alternative placements of overlaid information in the operators' field of view are assessed. A within-subject design was used in this study. Based on the results, there was no significant difference in performance between the transparency levels. However, the test participants preferred a transparency level of 70-80% (where 0% is completely opaque). Similar results were found with the placement of the overlaid information, which had no significant effect on task performance. Both placements, on the windscreen and on the tunnel wall, were equally favoured by the participants. The findings of this study contribute to the design of see-through features for mobile work machines. In addition, the study demonstrates the use of virtual prototyping in the design of novel features in human-machine systems.

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“…Fritzsche [17] declared the significance of the deviations among the digital human model simulations and real-life assessments; he suggested the incorporation of the comprehensive methods with simulation software to enhance the efficiency and the validity of digital ergonomics risk assessment. Gilad and Byran [18] emphasized the visual awareness of the driver when operating and controlling a vehicle. They developed a method for measuring and mapping the Field-of-View of the driver, incorporating computer simulations of a cockpit model and DHM positioned inside.…”

Section: Introductionmentioning

confidence: 99%

TEM-SOFT: Academic Software for the Ergo-Mechanic Investigation of Tailgate Operation

Özalp¹

2018

JSEA

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Because of their technical advantages over ordinary metal springs, gas springs find usage in wide range of applications from furniture to aerospace industry as lifting, lowering or damping assists. Their integration to the tailgate operations in automotive industry is a challenging area, where not only the fundamental gas spring characteristics but also the mounting settings, working environment and tailgate body structure should be considered. The design and integration of these components will determine manual force exertion of operators thus the consideration of ergonomic characteristics of different populations is crucial. This paper introduces a recent visual academic software package, entitled TEM-SOFT, which is developed as a part of this research to perform ergo-mechanic simulations of tailgate operations with a fast, reliable and contemporary engineering approach and it is suitable for engineers and under-post graduate level students of mechanical and industrial engineering programs in the universities. The software developed and presented in this paper features all aspects of tailgate-gas spring operations considering the assembly scheme, tailgate mass center, gas spring type and working temperature in order to compute the required manual forces and the individual and combined impacts of acting parameters. Sufficient amount of scenarios were considered and the results were evaluated and discussed extensively. In addition to the other key findings, conducted research has shown that stronger gas springs, more effectively tend to move the critical tailgate position angle-where no operator force is needed to keep the tailgate opening-to the initial phases of the opening operation. A trade-off of this benefit is a superior initial manual force during closing.

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Quantifying driver's field-of-view in tractors: methodology and case study

Cited by 13 publications

References 5 publications

Safety Vision of Agricultural Tractors: An Engineering Perspective Based on Recent Studies (2009–2019)

Safety Vision of Agricultural Tractors: An Engineering Perspective Based on Recent Studies (2009–2019)

Virtual prototyping in the design of see-through features in mobile machinery

TEM-SOFT: Academic Software for the Ergo-Mechanic Investigation of Tailgate Operation

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